import re

from core.config import xsschecker
from core.utils import stripper


def jsContexter(script):
    broken = script.split(xsschecker)
    pre = broken[0]
    #  remove everything that is between {..}, "..." or '...'
    pre = re.sub(r'(?s)\{.*?\}|(?s)\(.*?\)|(?s)".*?"|(?s)\'.*?\'', "", pre)
    breaker = ""
    num = 0
    for char in pre:  # iterate over the remaining characters
        if char == "{":
            breaker += "}"
        elif char == "(":
            breaker += (
                ";)"  # yes, it should be ); but we will invert the whole thing later
            )
        elif char == "[":
            breaker += "]"
        elif char == "/":
            try:
                if pre[num + 1] == "*":
                    breaker += "/*"
            except IndexError:
                pass
        elif (
            char == "}"
        ):  # we encountered a } so we will strip off "our }" because this one does the job
            breaker = stripper(breaker, "}")
        elif (
            char == ")"
        ):  # we encountered a ) so we will strip off "our }" because this one does the job
            breaker = stripper(breaker, ")")
        elif (
            breaker == "]"
        ):  # we encountered a ] so we will strip off "our }" because this one does the job
            breaker = stripper(breaker, "]")
        num += 1
    return breaker[::-1]  # invert the breaker string
